Page 137 - Grade 10 C.Math

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(x - 15) = 4(y - 15)

cyjf, x = 4y - 60 + 15

cyjf, x = 4y - 45 .......... (i)
Curriculum Development Centre
k]ml/, 5 jif{kl5 M

x + 5 = 2(y + 5)
cyjf, x = 2y + 10 - 5

cyjf, x = 2y + 5 ....... (ii)

;dLs/0f (i) / (ii) af6
4y – 45 = 2y + 5

cyjf, 4y – 2y = 5 + 45

cyjf, 2y = 50

cyjf, 

cyjf, y = 25

k]ml/ ;dLs/0f (i) af6

x = 4y – 45
= 4 x 25 – 45
= 100 – 45
= 55

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134 ul0ft, sIff – 10